All transitions work without the need to do Media Placeholders. You need to place a transition above the layer with the video, press a couple of buttons and ready.
Ability to use in Adobe After Effects
Ability to use in Premiere Pro (Adobe Dynamic Link)
Over 250 dynamic AE transitions for any video projects! Make your video amazing quickly. Useful for a slideshow, trailer, promo, music clip, movie or presentation – every project will be far more fascinating and professional!